What supplements/vitamin/skincare/treatment i should take so my skin dont get dull while wf?

Hello so i want to do 2 weeks - 20 days wf, i dont have problem with the hunger or my health physique, my face in the other hand looks so dull, has a big pore and acne scars also hyperpigmentation.

Sometime fasting makes our face looks tired and more dull, how to prevent that?